Colour Breeding
Indian Runner Ducks and Pekins brought in unusual plumage colour mutations. These included the dusky and restricted mallard genes, light phase, harlequin phase, blue and brown dilutions, as well as the famous pied varieties named by the geneticist F.M. Lancaster as the 'Runner pattern'. Much of the proliferation of new colour varieties in breeds of domestic duck begins with the importation of these oriental ducks. Original research by R.G. Jaap (1930s) and F.M. Lancaster has allowed breeders to understand the effect of genotypes in managing and creating colour varieties. Simplified information can be found in writings by Dave Holderread, and Mike and Chris Ashton.
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